A solid has NaCl structure. If the radius of cation A is 100 pm. What is the radius of anion B ?

What is Bohr's radius?

A binary solid (AB) has a rock salt structure. If the edge length is 400pm, radius of cation is 80pm the radius of anion is:

Br^- ions from a close packed structure. If the radius of Br^- ion is 195 pm, calculate the radius of the cation that just fits into the tetrahedral hole. Can a cation having a radius of 82 pm be slipped into the octahedral hole of the crystal A^+Br^- ?

The edge length of the face centred cubic cell of an ionic substance is 508 pm. If the radius of the cation is 110 pm, the radius of the anion is

What is the unit of radius gyration?

An ionic compound AB has fluorite type structures. If the radius B^(-) is 200pm, then the ideal radius of A^(+) would be:

Predict the structure of MgO. The radius of Mg^(2+) ion is 65 pm and radius of O^2 ion is 140 pm Also find the co-ordination number